WBPWD/EE/BNWD/NIT23e/2025-26/2

Cleaning the concrete surface by removing dirt and debris, marking defectivelocations and removing loose concrete by careful stripping untill hard surfaceis exposed, cutting the concrete to regular shape, wire brushing the exposedsurface and removing debris from site complete as per direction of the Engineer - in - Charge.

Cleaning the exposed reinforcement preferably upto full diameter by wirebrush, applying two coats of polymer based rust removing compound left for24 hours, removing the coating and then applying two (2) coats of polymermodified anti corrosive protective coating formulated to inhibit the corrosionof reinforcement as per manufacturer's specification] [Mode ofmeasurement:The affected surface area of reinforcement shall beconsidered for payment]

Removing corroded worn out portion of reinforcement (when the area of baris damaged by more than 25%) by cutting and replacing the same by a newplain round bar of requisite diameter by binding with required lap / weldingwith old bar, including cost of reinforcement, complete in all respectincluding removing unserviceable materials from site as per direction of theEngineer - in - charge. Note : Payment on weight (Kg.) of new reinforcement.

Applying epoxy based reactive joining agent for joining the old concrete withfresh concrete to be applied within manufacturer's specified time as permanufacturers specification. (0.4 Kg / m² of concrete surface). Note: Applicable only when the full diameter of reinforcement steel is exposed.

Guniting concrete surface with cement mortar (25mm nominal thick) applied with compressor after cleaning surface and spraying with epoxy complete asper Technical specification.

Plaster ( to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering conrners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary . [Excluding cost of chipping over concrete surface]. (ii) With 1:4 cement mortar . (c)10 mm. thick plaster. 5th floor

(i) With 1:4 cement mortar 10 mm thick plaster 6th floor

Rendring the surface of walls and ceiling with white cement based wall putty of approved make and brand (15mm thick).

Applying Interior grade Acrylic Primer of approved quality and brand on plastered or cencrete surface old or new surface to receive Distemper/ Acrylic emulsion paint including scraping and preparing the surface throughly, complete as per manufacturer's specification and as per direction of the EIC. (In Ground Floor) (a) One Coat i) Water based interior grade Acrylic Primer

Applying Acrylic Emulsion Paint of approved make and brand on walls and ceiling including sand papering in intermediate coats including putty (to be done under specific instruction of Superintending Engineer) : (Two coats) (i) standard quality.

Providing and fixing of 15mm thick Mineral Fibre Acoustic Ceiling Tilesof approved pattern and size 595mm X 595mm should be placed in theGrid module to form a False Ceiling with NRC value ≥ 0.6 Materialclass: A2-s1, d0 as per EN 13501-1, Fire: REI – REI120 as per EN 13501-2, Surface Burning Characteristics: Class 1 or A as per ASTM E 84) withpowder coated exposed G.I. grid suspension system (interlocking T-Grid,having load carrying capacity with mid span deflection not exceeding1/360 span with hanger spacing of 1200mm c/c) consisting of MainRunner 3600 mm long, Cross Tee 1200 mm / 600 mm long and WallAngle. The Wall Angle shall be fixed on PVC Dash Fasteners on theperimeter of the wall by steel screws with distance 300mm c/c. The MainRunners to be placed @ 1200 mm. The Cross Tee 1200mm will beinserted in the pre-cut slots of Main Runner at a regular interval of 600mm to form a modular grid of 1200mm X 600mm. Additional Cross Teesof 600 mm shall be placed perpendicular to the Cross Tee (Add. above ground floor - 4th floor) (Add. above ground floor - 6th floor) 1200 mm longto finally form a grid of 600 mm X 600 mm. Grid of module size 600 mmX 600 mm shall be supported by 6 mm dia G.I. wire from purlins/ soffit.All complete as per the drawing & directions of Engineer-in-charge. With 15 mm thick mineral fibre false ceiling tile (NRC ≥ 0.6 as perASTM C 423 & Sound attenuation - 34dB as per EN ISO 10848. Acoustic False Ceiling (with 15 mm thick OW Acoustic Board and E-Grid U -1520) 5th floor

6th floor

French polishing to wood work including preparing surface (ordinary gloss). (b) On old French polished surface including complete removal of old polish.

Supplying,fitting & fixing of 2-Track / 3-Track Aluminium slidingWindow of all Aluminium sections viz. window frame (top,bottom & sideframe), shutter (top, bottom, side & interlock member) made of aluminiumalloy extrusions conforming to IS 733-1983 & IS 1285-1975, annodisedconforming to IS 1868-1983, fitted with all other accessories viz. PVCroller, EPDM gasket, maruti lock, screws etc. including labour chargesfor fitting & fixing of aluminium 2-track/3-track sliding window withfixing of glass (excluding cost of glass) all complete as per architecturaldrawings and direction of Engineer-in-charge.10-12 Micron thickness Annodizing film Natural white

Supplying bubble free float glass of approved make and brand. Conforming to IS: 2835-1987. (iv) 5 mm thick coloured / tinted / smoke glass.

Supplying maruti lock. (100mm.).

Supplying PVC rollers for sliding windows as per direction of Engineer in charge.

(b) Supplying 'Godrej' mortice lock chromium plated with keys 6 levers, including fitting and fixing complete.

(ii) Godrej hydraulic door closer fitted and fixed complete. (b) Medium type.

Supplying and laying Polythene Sheet (150gm / sq.m.) overdamp proof course or below flooring or roof terracing or infoundation or in foundation trenches.

Resetting old glazed porcelain tiles in 20 mm thick cement mortar (1:4) including 4 Nos of key stone (10 mm) fixed with adhesive of approved quality & 2 mm thick cement slurry using cement @ 2.91 kg/Sq.m at the back of tiles and finishing joints with white cement & colouring oxide [if required] to match the colour of tiles over application slurry @ 1.75 kg/Sq.m below cement mortar including dismantling the old mortar etc.

Supplying, fitting and fixing best quality Indian make mirror 5.5 mm thick with silvering as per I.S.I specifications supported on fibre glass frame of any colour, frame size 550 mm X 400 mm.

TOTAL:

ADD : GST - 18% (SGST = 9% & CGST = 9%)

ADD : WEST BENGAL LABOUR WELFARE CESS = 1%